Improvement in heel and sole trimming machines



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HEEL AND SOLE TRIMMING-MACHINR N0.'188,337- Pat ented March-13,1877.

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. HEEL AND SOLETRIMMINGI-IMACHINE. No.188,337. Patented March 13, 1877.

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N- EI'ERS, PHOTOLITHOGRAPNER, WASHINGTON. D. c.

hivri'rn STATES PATENT BEIGE JAMES H. BUSELL, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN HEEL AND SOLE TRIMMING MACHINES.

Specification forming part of Letters Patent No. 188,337, datedMarch 13,1877; application filed February 2, 1877.

To all whom it may concern:

Be it known that I, JAMES H. BUSELL, of Boston, in the county of Suffolkand State of Massachusetts, have invented certain new and usefulImprovements in Heel and Solo Trimming Machines, of which the following,taken in connection with the accompanying drawings,'is a specificationMy invention relates to that class'of heel and sole trimming machines inwhich a rotary cutter is used for reducing the edge of the heel or sole,and is an improvement upon the invention patented to me September 21,1875, and numbered 167,874. g

The first part of my invention relates especially to the constructionand'arrangement of the randguide; and it consists in the use of acircular disk ofthin metal, to serve as a rand-guide, in combinationwith a rotary cutter for reducing the edge of the heel or sole, and arand-knife arranged to revolve in unison with the edge-trimmingcutter,,=and to be moved transversely of said cutter, or in a di;

rection at right angles to the axis of revolution, so that its path maybe either concentric or eccentric to the path of revolution of theedge-trimming cutter when said circular randguide is mounted upon andfirmly secured to the same spindle with the rand-cutter, and

revolves and is moved transversely of its axis of revolution in unisonwith said rand-cutter, as will be more fully described hereafter.

The second part of my invention relates to a device for removing thefeather-edge on the bottom of the sole or heel, and is applicable .toother machines for trimming heels or soles in which a rotary cutter isused for reducing the edge of the sole; and it consists in the use of aring-cutter surrounding a portion of the edge-trimming cutter, andadapted to revolve therewith, but free to be moved in the direction ofthe length of the axis about whichit revolves, said ring-cutter beingpressed against I the bottom of the soleby a light spring, as willbedescribed.

Figure, l of the drawings is a side elevation of a machine illustratingmy improvements. Fig. 2 is a central vertical longitudinal section. Fig.3 is a front-end elevation. Fig. 4 is a front-end elevation of theannular cutter for trimming the feather-edge from the bottom of thesole. Fig. 5 is a section on line :0 as on Fig. 4, and Fig. 6 is an endview of edge-trimming cutter.

A is the head of the supporting-frame, de-

signed to be bolted to the top of a columnbf 1 suitable height to bringthe cutters into convenient position for operation, and provided withthe two boxes A A in which is mounted the hollow shaft B, having securedto its front end the cutting-tool O, and provided with the pulley- D, bymeans of which and a belt (not shown in the drawings) rotary mo-- tionmay be imparted to the cutter G. E is a small steel spindle, the rearend of which is enlarged, so as to fill the chamber in the shaft B, towhich it is secured by the set-screw a, so as to revolve therewith. Thespindle E projects through the front end of the shaft B, and has abearing in the lower end of the inclined rod F, which, in its turn, ismounted in hearings on the stand G, and is forced downward by the springb with sufficient force to throw the front end of the'spindle E into aposition eccentric to the axis of the shaft B,

before cited. The cutter O is provided with a series of spiralchisel-shaped teeth, and has formed in its front end the recess orgroove 0, extending across the whole diameter thereof, in which'playsthe rand-knife d, secured firmly to the spindle E, as described in myformer patent heretofore cited.

H is a circular disk of steel, made slightly convex upon its outer face,and turned out upon its back face, so as to form a shallow recess,within which the rand-knife d revolves, its point. being prevented fromcutting the upper by the slight annular projecting rim around the edgeof the disk, the edge of which is rounded over smoothly to preventtherandguide from cutting the upper. This disk, with the rand-knife d,is secured to the spindle E by means of the nut E and collar E, be-

ment in the direction of the length of the bar F, said movement being ina right line, and as the rand-cutter d necessarily moved in the are of acircle every time that the position of I v the spindle Echangedfielative to the axis of shaft B, for the reason that saidlateral movement of the rand-cutter was obtained by the spring of thespindle E, it followed that when the rand-guide and rand-knife were intheir.

extreme lower position the lowerend of the rand-knife would be drawnaway from the guide, and there was danger of its cutting the upper whilethe upper end of the knife would be grinding hard against the randguide.This difficulty I have "obviated by the use of therevolving rand-guide,secured to and revolving with the rand-cutter about a movable axis.

To cut away what is known as the featheredge on the bottom of the sole Iuse the ringknife I, so formed as to surround the edgetrimmiug cutter(3, and adapted to revolve therewith, while it is free to be movedendwise on the shaft B, upon which it is loosely fitted by means of thehub I and triangular plate 1 to which the ring I is attached by thestuds-i. The ring I has its outer surface made conical orinclined towardthe front end of the machine, and has formed in its front end a seriesof teeth or cutters. 41 as shown in Figs. 4 and 5..

teeth fits between two teeth of the cutter'O,

thereby compelling the ring-cutter to revolve with the shalt B and thecutter 0, while, at

the same time, by a slight pressure of the-boot or shoesole against itsinclined face, it may be crowded away from the rand-guide andrand-cutter a distance equal tolthe thickness of the sole being trimmed,the spring J being sufficiently stiff to hold the cutter I up to thesole with just force enough to trim 011' the feather-edge.

If it is desirable to bevel the outer edge of the tread-surface of thesole, the cutter I is perfectly adapted to produce the desired result bysimply giving to its cutting-face the proper shape.

What I claim as new. and desire to secure by Letters Patent of theUnited States, is-

l. In a heel or sole trimming machine, the combination of a rotaryedge-trimming cutter adapted to revolve about a fixed axis, and arand-knife and a rand-guide, both mounted upon and adapted to revolveabout amovable axis, substantially as described. I

2. In combination with a rotary edge-trimming cutter, the ring-cutter Imounted upon and adapted to revolve with the shaftB, and to be movedendwise on said shaft to adapt it to the varying thicknesses of thesole,substantially as described.

3. The ring-cutter I, provided with one or more teeth, 52in combinationwith an edgetrimming cutter, provided with one or more grooves betweenits cutting-teeth to receive said teeth i substantially as and for thepurposes described. I

4. The combination of the cutter (l, shaft B, ring-cutter I, and springJ, constructed, arranged, and adapted to operate substantially as andfor the purposes described. 1

5. The combination of a rotaryedge-trim ming cutter,'a rand-knife, and arand-guide, bothmounted upon and adapted to revolve about a movableaxis, and the ringcutter I, all arranged and adapted to operate substantially as and for the purposes described.

Executed at Boston, Massachusetts,*this 30th day of January, 1877.

' JAMES H. BUSELL.

Witnesses:

N. G. LOMBARD,

E. A. HEMMENWAY.

